Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Patent
1997-12-24
1999-11-30
Chin, Wellington
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
455437, 455525, H04Q 720
Patent
active
059958367
ABSTRACT:
A method and system for performing handoffs in radiocommunication systems using a time variable hysteresis value are described. By varying the hysteresis value in accordance with the amount of time that the mobile station has been using a current channel, problems associated with the measurement of signal strengths attributable to filter initialization can be avoided.
REFERENCES:
patent: 5239667 (1993-08-01), Kanai
patent: 5379446 (1995-01-01), Murase
patent: 5678185 (1997-10-01), Chia
patent: 5701585 (1997-12-01), Kallin et al.
patent: 5722072 (1998-02-01), Crichton et al.
patent: 5722073 (1998-02-01), Wallstedt et al.
patent: 5774809 (1998-06-01), Tuutijarvi et al.
Lundborg Thomas
Nordlund Peter
Wijk Per
Chin Wellington
Telefonaktiebolaget LM Ericsson
Woldetatios Yemane
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